798cd57cd5
When this file was split in commit5d945cbcd4("drm/amd/display: Create a file dedicated to planes") this chunk seemed to get dropped. Linus noticed on this rx580 and I've reproduced on FIJI which makes sense as these are pre-modifier GPUs. With this applied, I get gdm back. Fixes:5d945cbcd4("drm/amd/display: Create a file dedicated to planes") Signed-off-by: Dave Airlie <airlied@redhat.com> Reported-and-tested-by: Linus Torvalds <torvalds@linux-foundation.org> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.